stone

1. N-MASS Stone is a hard solid substance found in the ground and often used for building houses. 石头

He could not tell whether the floor was wood or stone. 他分不清这地板是木头的还是石头的。

People often don't appreciate that marble is a natural stone. 人们往往不了解大理石是一种天然石头。

2. N-COUNT A stone is a small piece of rock that is found on the ground. 石子

He removed a stone from his shoe. 他清除了鞋中的一粒石子。

3. N-COUNT A stone is a large piece of stone put somewhere in memory of a person or event, or as a religious symbol. 石碑

The monument consists of a circle of gigantic stones. 该纪念碑由一圈巨大的石碑组成。

4. N-UNCOUNT Stone is used in expressions such as set in stone and tablets of stone to suggest that an idea or rule is firm and fixed, and cannot be changed. (思想或规则) 固定不变

He is merely throwing the idea forward for discussion, it is not cast in stone. 他只是抛出个想法供讨论，不是固定不变的。

5. N-COUNT You can refer to a jewel as a stone. 宝石

...a diamond ring with three stones. …一枚有3颗宝石的钻戒。

6. N-COUNT A stone is a small hard ball of minerals and other substances which sometimes forms in a person's kidneys or gallbladder. 结石

He had kidney stones. 他有肾结石。

7. N-COUNT The stone in a plum, cherry, or other fruit is the large hard seed in the middle of it. 果核[英国英语]

...cherry stones. …樱桃核。

8. V-T If people stone someone or something, they throw stones at them. 向…扔石头

Youths burned cars and stoned police. 年轻人烧车辆并向警察扔石头。

9. →see also stepping stone , stoned